When trying to explain your code to others, have you noticed where they get confused? Have you noticed where you get confused? Spend some time in those areas. Try refactoring, simplifying, or rewriting until the confusion goes away.
Snippets of code should be wrapped in
<code> tags not<pre> tags. In fact, <pre>
tags should generally be avoided. If they must
be used, extreme care should be
taken to ensure that their contents do not
have long lines (<70 chars), in order to prevent
horizontal scrolling (and possible janitor
intervention).